I have had my Geo 2.1 since the day they came out brand new and I have always used the stock bolt. I bought this to try it out and one thing is for sure I am getting a lot of bolt stick using stock board settings. I have increased my dwell and Anti-Bolt stick settings a bit to accommodate. I will continue to use it in 2014 to really determine if I like it or not but I can say this I haven't chopped a ball once with this bolt that I used all year 2013 with my stock barrel and then again neither did I with my stock bolt, stock settings, and stock barrel for a year straight using field paint roughly 15,000 paintballs. Jury is still out for me on this one.